"Though Mr. Mezger does not believe there is any excuse for the language he used, the incident that led to his losing his temper was the result of the culmination of a series of unneighborly actions taken by Ms. Griffin and her boyfriend," said Mezger's spokesman.

Those "actions" consist of up to 10 noise complaints that Griffin and her boyfriend, Randy Bick, have made against Mezger, leading to multiple visits by police, the spokesman said. In one of those cases in which the police showed up, the spokesman said, Mezger's niece, who "has stage 4 cancer" was renewing her marital vows with her husband at the Mezger home.

KB Home shares are down 2.3 percent this week, more than an S&P index of homebuilders, which is lower by 1.3 percent. The homebuilder's shares are still up 31 percent this year under Mezger.